多维资源评价软件TemisFlow在页岩油、页岩气非常规资源评价中的应用

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Temis软件在页岩油、页岩气非常规油气资源评价中的应用
——Search and Discovery Article #10384 (2012)
1、Abstract
In the French Paris Basin, most of hydrocarbons are generated in the Liassic Shale interval. Among these Liassic deposits, three source rock intervals are identified in the basin: the Lower Toarcian organic-rich interval (“Schistes Carton”); the Pliensbachian (“Amaltheus Shale”); and the Sinemurian-Hettangian. All are marine shales, with type II kerogen.
Numerous similarities exist between the North American Bakken Shale play, that locally is intensively developed for Shale Oil
production, and the Paris Liassic Shale: the high source rock potential with favorable maturation (within the oil window), a very close contact and proximity between the source beds and a potential low porosity tight fractured reservoir, and both basins being cratonic.
Multi-2D basin modeling over the main depocenter of Liassic Shale (east of Paris) helped to understand the source rock maturity evolution through time. Where most deeply buried, maturation started during Lower Cretaceous for Sinemurian source rock, and around mid-Cretaceous for Schistes Carton. Maturity increased until the end of Cretaceous and uplift/erosion of the basin; since then,maturity evolved very little.
Hydrocarbon generation and expulsion history from the source rocks was modeled. HC migration (starting at the end of Cretaceous) is developed upward (Dogger reservoirs) and downward (Triassic reservoirs), faults are important pathways. An evaluation of the amount of hydrocarbons still possibly trapped in source rocks (Shale Oil) was performed. A big part of the generated HC was subsequently expelled; the remaining HC vary from one source rock to another, and also geographically, but is generally in the average of 20-30% of the generated HC.
Based on 2D modeling results, tentative 3D volumetric estimates have been made. The main results taken from 2D modeling were the maturity level of the three source rocks at present day, especially their Transformation Ratio. TR was extrapolated to maps, based on the burial, thickness and structure of each source layer. Then total generated HC were estimated for each of the three source rocks. In total, around 95 bn bbls were generated by the Liassic Shales (Toarcian Schistes Carton being the most prolific source rock).
The use of basin modeling tools supported the new play concept that the Paris Basin is clearly a major area for Shale Oil potential. An exploration strategy is currently developed by Toreador for a proof of play of this unconventional resource.
2、THEME VI: SHALE OIL & GAS CASE STUDIES: THE TOOLBOX ASSETS II (AAPG/EMD) BASIN MODELING STUDY WITH TEMIS® SHALE OIL POTENTIAL OF THE PARIS BASIN,FRANCE，Milano, October 26th, 2011
2.1Overview of the Paris Basin Geology
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Unconventional Resources New Objectives in SR Layers
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Focus on the « Schistes Carton » eq. « Posidonia Shale » (2009)
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Analogy with the Bakken Shale
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2.2Available Data for the Temis 2D Study.Only old data is available for the Basin Modelling / Petroleum System Modelling in the
Paris Basin.
Zoom on the Study Area
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Focus on SR maps (effective thickness and TOC)
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2.3Temis 2D Study Paris Basin Building of 2D Basin Models
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TEMIS 2D Sections – Stratigraphy Section EW-1
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HC Expulsion Modelling Darcy Law
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2.4Temis 2D results_SR Maturity Modelling HC Expulsion Modelling
Source Rock Maturity (TR) Section EW-1
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Maturity Timing Section EW1
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TR maps updated with 2D modeling results
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Generated HC Mass Section EW-1
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In Place HC Section EW-1
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2.5Calculation of HC Volumes
Evaluation of remaining HC resources (at basin scale – 3D) in SR layers with:
- Source Rock thickness maps - TOC maps
- Transformation Ratio maps (from Temis 2D)
- Average ratio « remaining HC / generated HC » (from Temis 2D)
Calculation of HC Resouces Workflow
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Non-Expelled HC Resources in Source Rocks of the Paris Basin
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3.CONCLUSIONS:TEMIS basin modeling is a good tool to estimate HC volumes in Unconventional Plays.
1. The dataset on the Paris Basin available in 2009 was abundant but old:
- 6 regional seismic lines (BRGM)
- Source rock maps from geological atlases (IFP and BRGM)
- Well data
 We integrated all for an evaluation at basin scale
2. A methodology based on TEMIS 2D models was developed for
estimating HC volumes remaining in SR layers.
3. The 3 Liassic source rocks GENERATED large volumes of HC in the
Paris Basin, about 80 Bbbl in the study area (9 500 km²).
(0.25 Bbbl produced in conventional reservoirs)
4. REMAINING volumes in SRs = 16 Bbbl (>50% in the Schistes Carton).

sunxiangxi2012

终于看到非常规的资源评价技术了，嘿嘿，好好琢磨一下。

sunxiangxi2012

终于看到非常规的资源评价技术了，嘿嘿，好好琢磨一下。

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sunxiangxi2012 发表于 2013-1-29 14:15
终于看到非常规的资源评价技术了，嘿嘿，好好琢磨一下。

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